This might open the thread a little. Not accurate to any one specific film because its a modded toy

I saw potential in the hasbro version of the ROTS Obi saber bought from a car boot sale.
https://s19.postimg.org/utp66k8ub/webbensaber23.jpg
Toy body was cut to bits with a long galv bolt running the whole length and set in the plastic with car filler. It's real heavy.
The emiter end is all metal just glued together around a pignose nut on the galv bolt. Bronse tube, washers and part of a specialist concrete drill bit are all involved.